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path: root/drivers/dma/dma-jz4740.c
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Diffstat (limited to 'drivers/dma/dma-jz4740.c')
-rw-r--r--drivers/dma/dma-jz4740.c14
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/dma/dma-jz4740.c b/drivers/dma/dma-jz4740.c
index 7638b24ce8d0..9689b36c005a 100644
--- a/drivers/dma/dma-jz4740.c
+++ b/drivers/dma/dma-jz4740.c
@@ -573,12 +573,26 @@ err_unregister:
return ret;
}
+static void jz4740_cleanup_vchan(struct dma_device *dmadev)
+{
+ struct jz4740_dmaengine_chan *chan, *_chan;
+
+ list_for_each_entry_safe(chan, _chan,
+ &dmadev->channels, vchan.chan.device_node) {
+ list_del(&chan->vchan.chan.device_node);
+ tasklet_kill(&chan->vchan.task);
+ }
+}
+
+
static int jz4740_dma_remove(struct platform_device *pdev)
{
struct jz4740_dma_dev *dmadev = platform_get_drvdata(pdev);
int irq = platform_get_irq(pdev, 0);
free_irq(irq, dmadev);
+
+ jz4740_cleanup_vchan(&dmadev->ddev);
dma_async_device_unregister(&dmadev->ddev);
clk_disable_unprepare(dmadev->clk);